Companies who previously attended the event include the following:

A AB Messtechnik GmbH- ABG Geosynthetics Ltd.- Agru Kunststofftechnik GmbH- Akizo Insulation Systems Co.- Albemarle Europe Sprl- Albemarle Martinswerk- Alphamin SA- Alwitra Kg Klaus Gobel- Alyaf Ind. Co. Ltd.- Amut S.p.A.- Ardex Australia Pty Ltd.- Ardex New Zealand Limited- Atarfil S.L.- Axter Ltd- Azuteas Verdes 

B Bandera Luigi Costruzioni Meccaniche S.p.A.- Basell Italia Srl- BASF- Bayer Material Science AG- Bitumat Co. Ltd.- Bitumen - Und Baustoffindustrie Baumler GmbH- Bituminous Waterproofing Materials Inc. (Btm)- Bitunil- Bonar Yarns-  Borealis Polymers N.V.- Bre- Btm Bitümlü Tecrit Maddeler Sanayi Ve Ticaret E.Ş.- Building Envelope Technology Research

C Cabot Corporation- Canadian General Tower Ltd.- Carlisle Syntec Systems Europe- Center For Environmental Innovation In Roofing/Teg- Cetco Europe Ltd.- Chemtura Corporation- Chemtura Vinyl Additives GmbH- Chesterfelt Ltd.- Chidak Baspar- Chomarat Composites- Ciba Specialty Chemicals- Coatema Coating Machinery GmbH- Colbond B.V.

D Davis-Standard LLC- De Boer Waterproofing Solutions NV- Deltares- DOW Benelux N.V.- DOW Deutschland GmbH- DOW Europe GmbH- DOW Hyperlast- DOW Roofing Systems- DOW Geomembranes- DRC Polymer Products- DSM Deutschland GmbH- DSM Research- Dupont De Nemours Deutschland GmbH- DWI Dermabit Waterproofing Industries Co. Ltd

E Edana- Ergis-Eurofilms S.A.- Davis-Standard GmbH- Eurac Research- Eurofilm Mantzaris S.A.- Evonik Degussa GmbH- Evonik Röhm GmbH- Exten S.A.- Exxonmobil Chemical- Exxonmobil Chemical Central Europe GmbH

F Famos GmbH- Fatra A.S.- Firestone Building Products- Flachdach Technologie GmbH & Co. Kg- Flag UK Ltd.- Foliarex Sp. Z.O.O- Franklin International- Fraunhofer Institute For Buildings Physics- Freudenberg Politex S.R.L- Fujifilm

G Garware Wall Ropes Ltd.- Genap BV- General Nonwovens & Composites- Geosynthetica- German Capital GmbH- Gidrol Roofing- Research and Production Plant Ltd.- Grace Construction Products- Grace Sp. Z.O.O- GSE Lining Technology GmbH

H Hansen & Rosenthal- Henkel Bautechnik GmbH- Henkelpolybit- Heromelt Adhesives Inc.- Hertalan Rubber Producers- Herz GmbH Kunststoff Und Warmetechnologie- Huntsman Belgium

I  I B Roof Systems- Icopal / Siplast- Icopal Oy- IKO Europe N.V.- IKO Sales International N.V.- Imper Italia S.p.A.- Imperbel SA- Imperbit Membrane Industries LLC- International Green Roof Association- Interwrap Industries Inc.- Intron Certificatie BV- Isola A/S- ISP Gtd GmbH- Italiana Membrane S.p.A.

J James Dewhurst GmbH- Johns Manville Sales GmbH- Juta A.S.

K Kaneka Belgium N.V.- Kemper System GmbH & Co. Kg- Kirson Industrial Reinforcements GmbH- Krauss Maffei Berstorff GmbH- KTH (Royal Institute Of Technology)
 
L Lanxess Deutschland GmbH- Leister Process Technologies- Lemminkainen Corporation- Lenzing Plastics GmbH- LG Chemical Ltd.- Liquid Plastics Ltd.- Lucobit AG- Lyondell Basell Industries- Lyondellbasell Polyolefins Company BVBA 

M Maris Polymers S.A.- Mast S.A.- Minelco GmbH- Mitsui Chemicals Europe GmbH- Modern Waterproofing Co.- Moll Bauokologische Produkte GmbH- Mondi Belcoat NV- Monier Roofing Compon- Multiplan Yaltim Sistemleri Tic. A.Ş

N Nabaltec AG- NDC Infrared Engineering Ltd.- NGF Europe- Nowofol Kunststoffprodukte GmbH & Co. Kg- Nuova Sima Srl- NV De Boer
 
O Obeikan Technical Fabrics Co. Ltd.- Optigruen International AG

P Paul Bauder GmbH- Penoplex Holding Company- Phoenix Dichtungstechnik GmbH- Plastika Kritis S.A.- Plato Chemical Company Ltd.- Polaris International W.L.L.- Polimeri Europa Srl- Polisystem S.p.A.- Polivouga Industria De Plasticos S.A.- Poly Rubber Products- Prelasti SA/NV- Protan AS

Q Quimica Del Rey S.A. de C.V.
 
R Renolit Belgium N.V.- Research Institute For Horticulture At The Weihens- Rohm & Haas Europe Trading Aps- RPM/Belgium N.V.
 
S  Sabic Europe- Savatech d.o.o.- Sensor Spol S R.O.- Siamflexpack Co. Ltd.- Sika S.A.- Sika Services AG- Sika Technology AG- Silke Schwoebken- Single Ply Roofing Association- Siplast/Icopal- Soft NW S.p.A.- Solar Integrated Technologies GmbH- Solmax International- Solvin S.A.- Soprema- Sotrafa S.A.- Standart Izolasyon- SX / EW Del Perú S.A.- Synthomer Limited
 
T Tanaka Laboratory- TBS Elastomers Europe- Tencate Geosynthetics- Terageos- Thrace Plastics Co. S.A.- TNO Quality Services B.V.- Trelleborg Building Systems AB- Trelleborg Waterproofing AB- Tremco Illbruck Ltd.

U Ulva Ltd.- United Coatings- Universitat Fur Bodenkultur Wien
 
V Valeron Strength Films BVBA- Van Besouw Kunststoffen BV- Vedag Villas GmbH- Veranneman Technical Textiles NV- Villas Austria GmbH- Vink Norway AS- VJF Isosystem Ltd.- VWS Geotechniek B.V.
 
W Wacker Polymer Systems- Wakol GmbH- Water Seal Co. LLC- Wattex NV- Winn & Coales (Denso) Ltd.